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Some of the early CCD cameras were like this, cooler on/off but no set point and possibly no ccd temperature. Some earlt ATIK cameras were like that. In that case the camera properties reflectd this.
As far as I can tell, when running indi_getprop, there's no way to control the temperature setpoint. When I ran this CCD using Starlight's own GUI software, there was an option to set the temperature setpoint.
The only available properties I see for this CCD, relating to temperature/cooling, are:
CCD_TEMPERATURE.CCD_TEMPERATURE_VALUE is used to set the temperature setpoint given that CCD_TEMPERATURE is read-write property and not just read-only.